dmesg confusions
Greetings all;
running an iso from linuxcnc.org based on stretch. s/b all upto date.
from uname -a
Linux coyote 4.9.0-9-rt-amd64 #1 SMP PREEMPT RT Debian 4.9.168-1+deb9u5
(2019-08-11) x86_64 GNU/Linux
I just rebooted a couple times, basicly looking for the
correct /dev/ttyUSB# to assign to heyu that would be the correct one to
connect it to the cm11a. udev seems to enjoy confusing that port.
But the first reboot had a stanza in dmesg fussing about IOMMU being
disabled in the bios. So I rebooted again and poked around in the bios
without finding any reference to IOMMU. I don't believe I actually
changed anything. But I saved and rebooted anyway.
Now the IOMMU related msgs are gone, but this remains in dmesg:
0.000000] ACPI BIOS Warning (bug): 32/64X length mismatch in
FADT/Pm1aEventBlock: 32/8 (20160831/tbfadt-603)
[ 0.000000] ACPI BIOS Warning (bug): 32/64X length mismatch in
FADT/Pm1aControlBlock: 16/8 (20160831/tbfadt-603)
[ 0.000000] ACPI BIOS Warning (bug): 32/64X length mismatch in
FADT/PmTimerBlock: 32/8 (20160831/tbfadt-603)
[ 0.000000] ACPI BIOS Warning (bug): 32/64X length mismatch in
FADT/Gpe0Block: 64/8 (20160831/tbfadt-603)
[ 0.000000] ACPI BIOS Warning (bug): 32/64X length mismatch in
FADT/Gpe1Block: 128/8 (20160831/tbfadt-603)
[ 0.000000] ACPI BIOS Warning (bug): Invalid length for
FADT/Pm1aEventBlock: 8, using default 32 (20160831/tbfadt-708)
[ 0.000000] ACPI BIOS Warning (bug): Invalid length for
FADT/Pm1aControlBlock: 8, using default 16 (20160831/tbfadt-708)
[ 0.000000] ACPI BIOS Warning (bug): Invalid length for
FADT/PmTimerBlock: 8, using default 32 (20160831/tbfadt-708)
Which I don't recall seeing in the previous decade of running this
mobo/cpu combo.
Whose bug might this be, or is my cmos battery about to ~30~ on me?
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/gene>
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